40431333431154 has 32 divisors (see below), whose sum is σ = 82018762626240. Its totient is φ = 13285683778752.

The previous prime is 40431333431143. The next prime is 40431333431201. The reversal of 40431333431154 is 45113433313404.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156778804 + ... + 157036479.

It is an arithmetic number, because the mean of its divisors is an integer number (2563086332070).

Almost surely, 2^{40431333431154} is an apocalyptic number.

40431333431154 is an abundant number, since it is smaller than the sum of its proper divisors (41587429195086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40431333431154 is a wasteful number, since it uses less digits than its factorization.

40431333431154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313815594.

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 40431333431154 its reverse (45113433313404), we get a palindrome (85544766744558).

The spelling of 40431333431154 in words is "forty trillion, four hundred thirty-one billion, three hundred thirty-three million, four hundred thirty-one thousand, one hundred fifty-four".